No 3 (2026)

An alternative scheme for the low-temperature processing of hydrocarbon gas streams is proposed, which increases the recovery of valuable components and improves economic efficiency. The classical scheme of low-temperature condensation and rectification is analyzed, where the joint processing of streams with different C₁ : C₂₊ ratios limits the recovery of target hydrocarbon components. Technical solutions for the separate processing of phase streams are presented, making it possible to reduce ethane losses with fuel gas and increase the yield of individual hydrocarbons for the petrochemical and oil refining industries.

The paper presents the results of the development of plant-based reagents capable of breaking stable oil sludge emulsions. Vegetable oils and their processing by-products containing higher fatty acids, predominantly oleic acid, were used as feedstock. Esters were synthesized from rapeseed oil and waste cooking oil (WCO) via acid esterification and alkaline transesterification, followed by neutralization and product purification. The synthesized esters were found to exhibit high selectivity toward asphaltene-resin components and to ensure efficient separation of the hydrocarbon phase. The technological potential of using bio-oriented reagents in the utilization of oil-containing waste is demonstrated, as well as the possibility of recovering valuable hydrocarbon fractions.

The article presents the results of comparative studies of the dynamic adsorption activity of domestic and foreign industrial zeolite-type adsorbents, silica gels, and active aluminum oxides for drying gases in field preparation and processing of natural gas, production of liquefied natural gas (LNG), and chemical processing of hydrocarbon and inorganic gases. Methane, nitrogen, helium, and ambient air were used as individual gases. It has been established that in gas drying, the studied adsorbents arrange in the following order in terms of dynamic activity (capacity): zeolites > silica gels > aluminum oxide. It has been revealed that modern Russian adsorbents have increased dynamic adsorption activity compared to foreign counterparts.

The paper describes a method based on neutron activation analysis that allows measuring the total oxygen content in a hydrocarbon medium. An experimental setup has been created and tested. The tests have shown that the setup allows a full measurement cycle to be completed in just 60 seconds. The range of measurable oxygen concentrations is from 0.01% to 100%. It is shown that the measured oxygen content does not depend on the chemical compound the oxygen is part of, nor on the aggregate state of the substance under study. The setup is compact and can be installed in a minibus as a mobile laboratory. The developed method can be used for solving practical problems related to monitoring oxygen or oxygen-containing substances in various hydrocarbon media.

It is proposed to assess detergent activity by the electrical conductivity of additive solutions. Quantitative relationships linking the activity of a detergent to its initial base number have been established.

The results of producing IGP industrial oils are presented. The production technology for IGP oils was modernized by introducing a multifunctional additive package RN-P-IGS manufactured by JSC SvNIINP, which improved oil quality and reduced feedstock costs by 30–40%. The feasibility of producing hydraulic oils of different performance levels (IGP, HLP (HM), HVLP (HV)) using the RN-P-IGS additive package is demonstrated.

Technologies for effective elimination of the consequences of oil and petroleum product spills, created using innovative equipment from FAST ENGINEERING LLC, as well as a method for processing soils impregnated with petroleum products to obtain fuel gas or electricity, are presented.

The article addresses the problem of transitioning industrial enterprises to a closed water consumption cycle (CWCC) as a priority area for resource conservation and reduction of anthropogenic pressure on water bodies. The relevance of transitioning to integrated water resources management, including solutions aimed at achieving a closed water consumption cycle, is substantiated. Based on an analysis of existing approaches, the need to develop a universal tool for assessing the feasibility and parameters of implementing a CWCC is identified. A block-type model for establishing a closed water consumption cycle for oil refining enterprises is proposed, which takes into account both environmental and economic indicators. The model was tested using the Moscow Oil Refinery as a case study.